GNU libmicrohttpd 0.9.5
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Methods for parsing POST data. More...
#include "internal.h"
Go to the source code of this file.
Defines | |
#define | XBUF_SIZE 1024 |
Enumerations | |
enum | PP_State { PP_Error, PP_Done, PP_Init, PP_ProcessValue, PP_ExpectNewLine, PP_ProcessEntryHeaders, PP_PerformCheckMultipart, PP_ProcessValueToBoundary, PP_PerformCleanup, PP_Nested_Init, PP_Nested_PerformMarking, PP_Nested_ProcessEntryHeaders, PP_Nested_ProcessValueToBoundary, PP_Nested_PerformCleanup } |
enum | RN_State { RN_Inactive = 0, RN_OptN = 1, RN_Full = 2, RN_Dash = 3, RN_Dash2 = 4 } |
enum | NE_State { NE_none = 0, NE_content_name = 1, NE_content_type = 2, NE_content_filename = 4, NE_content_transfer_encoding = 8 } |
Functions | |
struct MHD_PostProcessor * | MHD_create_post_processor (struct MHD_Connection *connection, size_t buffer_size, MHD_PostDataIterator ikvi, void *cls) |
static int | post_process_urlencoded (struct MHD_PostProcessor *pp, const char *post_data, size_t post_data_len) |
static int | try_match_header (const char *prefix, char *line, char **suffix) |
static int | find_boundary (struct MHD_PostProcessor *pp, const char *boundary, size_t blen, size_t *ioffptr, enum PP_State next_state, enum PP_State next_dash_state) |
static void | try_get_value (const char *buf, const char *key, char **destination) |
static int | process_multipart_headers (struct MHD_PostProcessor *pp, size_t *ioffptr, enum PP_State next_state) |
static int | process_value_to_boundary (struct MHD_PostProcessor *pp, size_t *ioffptr, const char *boundary, size_t blen, enum PP_State next_state, enum PP_State next_dash_state) |
static void | free_unmarked (struct MHD_PostProcessor *pp) |
static int | post_process_multipart (struct MHD_PostProcessor *pp, const char *post_data, size_t post_data_len) |
int | MHD_post_process (struct MHD_PostProcessor *pp, const char *post_data, size_t post_data_len) |
int | MHD_destroy_post_processor (struct MHD_PostProcessor *pp) |
Methods for parsing POST data.
Definition in file postprocessor.c.
#define XBUF_SIZE 1024 |
Size of on-stack buffer that we use for un-escaping of the value.
Definition at line 31 of file postprocessor.c.
Referenced by post_process_urlencoded().
enum NE_State |
Bits for the globally known fields that should not be deleted when we exit the nested state.
NE_none | |
NE_content_name | |
NE_content_type | |
NE_content_filename | |
NE_content_transfer_encoding |
Definition at line 98 of file postprocessor.c.
enum PP_State |
States in the PP parser's state machine.
Definition at line 36 of file postprocessor.c.
enum RN_State |
Definition at line 62 of file postprocessor.c.
static int find_boundary | ( | struct MHD_PostProcessor * | pp, |
const char * | boundary, | ||
size_t | blen, | ||
size_t * | ioffptr, | ||
enum PP_State | next_state, | ||
enum PP_State | next_dash_state | ||
) | [static] |
Definition at line 473 of file postprocessor.c.
References MHD_NO, MHD_YES, PP_Error, and RN_Dash.
Referenced by post_process_multipart().
static void free_unmarked | ( | struct MHD_PostProcessor * | pp | ) | [static] |
Definition at line 689 of file postprocessor.c.
References NE_content_filename, NE_content_name, NE_content_transfer_encoding, NE_content_type, and NULL.
Referenced by MHD_destroy_post_processor(), and post_process_multipart().
struct MHD_PostProcessor* MHD_create_post_processor | ( | struct MHD_Connection * | connection, |
size_t | buffer_size, | ||
MHD_PostDataIterator | ikvi, | ||
void * | cls | ||
) | [read] |
Create a PostProcessor.
A PostProcessor can be used to (incrementally) parse the data portion of a POST request.
connection | the connection on which the POST is happening (used to determine the POST format) |
buffer_size | maximum number of bytes to use for internal buffering (used only for the parsing, specifically the parsing of the keys). A tiny value (256-1024) should be sufficient. Do NOT use 0. |
ikvi | iterator to be called with the parsed data |
cls | first argument to ikvi |
Definition at line 249 of file postprocessor.c.
References MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_TYPE, MHD_HTTP_POST_ENCODING_FORM_URLENCODED, MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA, MHD_lookup_connection_value(), mhd_panic, mhd_panic_cls, NULL, PP_Init, and RN_Inactive.
Referenced by test_simple_large().
int MHD_destroy_post_processor | ( | struct MHD_PostProcessor * | pp | ) |
Release PostProcessor resources.
Definition at line 1026 of file postprocessor.c.
References free_unmarked(), MHD_NO, MHD_YES, NE_none, NULL, and PP_Done.
Referenced by test_simple_large().
int MHD_post_process | ( | struct MHD_PostProcessor * | pp, |
const char * | post_data, | ||
size_t | post_data_len | ||
) |
Parse and process POST data. Call this function when POST data is available (usually during an MHD_AccessHandlerCallback) with the upload_data and upload_data_size. Whenever possible, this will then cause calls to the MHD_IncrementalKeyValueIterator.
pp | the post processor |
post_data | post_data_len bytes of POST data |
post_data_len | length of post_data |
Definition at line 1004 of file postprocessor.c.
References MHD_HTTP_POST_ENCODING_FORM_URLENCODED, MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA, MHD_NO, MHD_YES, NULL, post_process_multipart(), and post_process_urlencoded().
Referenced by test_simple_large().
static int post_process_multipart | ( | struct MHD_PostProcessor * | pp, |
const char * | post_data, | ||
size_t | post_data_len | ||
) | [static] |
Decode multipart POST data.
Definition at line 719 of file postprocessor.c.
References find_boundary(), free_unmarked(), MHD_NO, mhd_panic, mhd_panic_cls, MHD_YES, NE_content_filename, NE_content_name, NE_content_transfer_encoding, NE_content_type, NE_none, NULL, PP_Done, PP_Error, PP_Init, PP_Nested_Init, PP_Nested_PerformCleanup, PP_Nested_PerformMarking, PP_Nested_ProcessEntryHeaders, PP_Nested_ProcessValueToBoundary, PP_PerformCheckMultipart, PP_PerformCleanup, PP_ProcessEntryHeaders, PP_ProcessValueToBoundary, process_multipart_headers(), process_value_to_boundary(), RN_Dash, RN_Dash2, RN_Full, RN_Inactive, and RN_OptN.
Referenced by MHD_post_process().
static int post_process_urlencoded | ( | struct MHD_PostProcessor * | pp, |
const char * | post_data, | ||
size_t | post_data_len | ||
) | [static] |
Process url-encoded POST data.
Definition at line 306 of file postprocessor.c.
References MHD_http_unescape(), MHD_NO, mhd_panic, mhd_panic_cls, MHD_POSTDATA_KIND, MHD_YES, NULL, PP_Done, PP_Error, PP_ExpectNewLine, PP_Init, PP_ProcessValue, and XBUF_SIZE.
Referenced by MHD_post_process().
static int process_multipart_headers | ( | struct MHD_PostProcessor * | pp, |
size_t * | ioffptr, | ||
enum PP_State | next_state | ||
) | [static] |
Go over the headers of the part and update the fields in "pp" according to what we find. If we are at the end of the headers (as indicated by an empty line), transition into next_state.
ioffptr | set to how many bytes have been processed |
Definition at line 557 of file postprocessor.c.
References MHD_NO, MHD_YES, PP_Error, RN_Full, RN_OptN, try_get_value(), and try_match_header().
Referenced by post_process_multipart().
static int process_value_to_boundary | ( | struct MHD_PostProcessor * | pp, |
size_t * | ioffptr, | ||
const char * | boundary, | ||
size_t | blen, | ||
enum PP_State | next_state, | ||
enum PP_State | next_dash_state | ||
) | [static] |
We have the value until we hit the given boundary; process accordingly.
boundary | the boundary to look for |
blen | strlen(boundary) |
next_state | what state to go into after the boundary was found |
next_dash_state | state to go into if the next boundary ends with "--" |
Definition at line 618 of file postprocessor.c.
References MHD_NO, MHD_POSTDATA_KIND, MHD_YES, PP_Error, and RN_Dash.
Referenced by post_process_multipart().
static void try_get_value | ( | const char * | buf, |
const char * | key, | ||
char ** | destination | ||
) | [static] |
In buf, there maybe an expression '$key="$value"'. If that is the case, copy a copy of $value to destination.
If destination is already non-NULL, do nothing.
Definition at line 510 of file postprocessor.c.
References NULL.
Referenced by process_multipart_headers().
static int try_match_header | ( | const char * | prefix, |
char * | line, | ||
char ** | suffix | ||
) | [static] |
If the given line matches the prefix, strdup the rest of the line into the suffix ptr.
Definition at line 456 of file postprocessor.c.
References MHD_NO, MHD_YES, and NULL.
Referenced by process_multipart_headers().